'''
@Author: your name
@Date: 2020-05-27 20:43:33
@LastEditTime: 2020-06-03 23:04:51
@LastEditors: Please set LastEditors
@Description: In User Settings Edit
@FilePath: \python\com.xiaohe\demo.py
'''
s = "PYTHON"
while s != "":
    for c in s:
        print(c, end="=")
    s = s[: -1]
